i used a blur and motion. i used all sorts of things to say this is boxing. >> so you shoot sergio martinez and we see him jumping rope. >> yeah. >> and it seems like there's about 40 images compacted in one. >> i timed the jump rope, .3 seconds to go around. essentially there's 60 strobes going off and it sounds like this. 60 strobes going off and then one central strobe and able to depict the jumping of the rope in a still picture and you can sort of feel it. >> your photograph of mike tyson is one of the greatest mike tyson photos i have ever seen. >> i did an interview first so he could tell in a half an hour that i was a good guy, he could trust me. they're creative beings. he did stuff for me. i encouraged him. great, great, do it. some were terrible and awful pictures and he did that scowl and it was like perfect. >> was he screaming? >> he went aaah! like that. i said let me have it again. >> you studied boxing for years before you started shooting. >> when i was fascinated with boxers after the athlet